Anti cross-contamination dual cartridge dispenser
CA 2177341 C · Owner: Robinson, Leonard R. · Inventors: Robinson, Leonard R.
Overview
Its claims, description and drawings are in the Canadian Patents Database.
Open the CIPO recordAbstract From the Canadian patent
The present invention is directed to an apparatus for dispensing a 2-part adhesive. The apparatus includes a cartridge body having two vessels for containing separate liquid components respectively. Each vessel has a corresponding nozzle with an orifice in fluid communication with the corresponding vessel. The apparatus also has a cap frangibly connected to the nozzles to seal the orifices prior to opening the vessels. The cap is constructed so that separation from the nozzles opens the orifices. Once disconnected the cap is removably securable to the nozzles. The cap also has a receptacle that conforms to the profile of the nozzles to prevent cross-contamination of the liquid components.
Read the whole patent
Listed from its CIPO record in Patent Yard's archive of Canadian patents past their term. Its claims, description and drawings are in the CIPO record and on Google Patents, and the Claude kit works from them.
Why it's free to use
- Filed May 24, 1996 and granted February 25, 2003. A Canadian patent filed from October 1, 1989 lasts 20 years from filing, so its term ended May 24, 2016.
- A certificate of supplementary protection adds at most two years for a drug, so even that would have ended by May 24, 2018.
- We check Canadian rights only. A patent in its family in another country could still be in force: check its family on Google Patents.
Timeline
Timeline From CIPO dates
Sources & verification
Official CIPO records
Everything on this page comes from the CIPO record linked above. Contains information licensed under the Open Government Licence – Canada.